By ANTHONY ANDRO TALLADEGA, Ala. — Perhaps it’s fitting for Dale Earnhardt Jr. that this weekend’s racing festivities at Talladega are being billed as Hallow-Dega.The entire 2009 season has been nothing short of a horror movie for the sport’s most popular driver.Earnhardt is doing his best to make sure that 2010 isn’t a bad sequel, and he hopes to start turning things around at Sunday’s AMP Energy 500 at Talladega Superspeedway."We just have to change our luck, which is a cheap excuse," said the driver of the No.